Ecology

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Across
  1. 1. living
  2. 5. the layer of our planet that supports and contains every living thing
  3. 7. group of different populations living in the same at the same time
  4. 8. study living things, groups of living things, or large landscapes
Down
  1. 2. the smallest unit of life that can sustain itself
  2. 3. community+abiotic factors
  3. 4. a group of the same kind of organisms living together in the same place at the same time
  4. 6. branch of biology that deals with the relationships of organisms to one another and to their physical surroundings